Android发送http请求并解析json

 

Android发送http请求并解析json

2011年06月28日 星期二 11:00

package android.test;  
import java.io.BufferedReader;  
import java.io.InputStreamReader;  
import org.apache.http.HttpResponse;  
import org.apache.http.client.HttpClient;  
import org.apache.http.client.methods.HttpGet;  
import org.apache.http.impl.client.DefaultHttpClient;  
import org.json.JSONArray;  
import org.json.JSONException;  
import org.json.JSONObject;  
import android.app.Activity;  
import android.os.Bundle;  
import android.util.Log;  
import android.widget.TextView;  
public class Main extends Activity {  
    private TextView m_textView;  
    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.main);  
        JSONObject obj = GetJsonObject();  
        StringBuilder sb = new StringBuilder();  
        try {  
            sb.append("product_id: " + obj.getInt("id") + "\n");  
            sb.append("website_name: " + obj.getString("site_name") + "\n");  
            sb.append("title: " + obj.getString("title") + "\n");  
        } catch (JSONException e) {  
            e.printStackTrace();  
        }  
        m_textView = (TextView) findViewById(R.id.myTextView);  
        m_textView.setText(sb.toString());  
    }  
    private JSONObject GetJsonObject() {  
        HttpClient client = new DefaultHttpClient();  
        StringBuilder builder = new StringBuilder();  
        JSONArray jsonArray = null;  
        HttpGet get = new HttpGet("http://www.test.com/aaa");  
        try {  
            HttpResponse response = client.execute(get);  
            BufferedReader reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));  
            for (String s = reader.readLine(); s != null; s = reader.readLine()) {  
                builder.append(s);  
            }  
            Log.i("json_str", builder.toString());  
            jsonArray = new JSONArray(builder.toString());  
            for (int i = 0; i < 2; ++i) {  
                JSONObject jsonObject = jsonArray.getJSONObject(i);  
                Log.i("id", jsonObject.getInt("id") + "");  
                Log.i("website_name", jsonObject.getString("site_name"));  
                Log.i("website_url", jsonObject.getString("site_url"));  
                Log.i("category", jsonObject.getInt("category") + "");  
                Log.i("title", jsonObject.getString("title"));  
            }  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
        try {  
            return jsonArray.getJSONObject(5);  
        } catch (JSONException e) {  
            e.printStackTrace();  
            return null;  
        }  
    }  
} 

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/ilysony/archive/2011/03/24/6273662.aspx